Method of spectrum mapping and exploitation using distributed sensors

a distributed sensor and spectrum mapping technology, applied in the field of method and a system of signal collection networks, can solve the problems of limited knowledge of transmitting signals, unreliable, and difficult single sensor modulation classification of unknown weak signals, and achieve effective signal monitoring, huge overall performance gains, and increased reliability

Inactive Publication Date: 2014-06-17
UNITED STATES OF AMERICA THE AS REPRESENTED BY THE SEC OF THE ARMY
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  • Abstract
  • Description
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  • Application Information

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Benefits of technology

[0010]In order to meet the long-felt need for more effective signal monitoring and improved demodulation, without suffering from the limitations, shortcomings and difficulties of prior art configurations, this invention's multi-sensor signal fusion devices and methods combine signals from multiple sensors to provide descriptions of the monitored signals that are more accurate than single signal demodulation. Multi-sensor signal fusion offers i

Problems solved by technology

In non-cooperative communications, the receiver has no knowledge, or only has limited knowledge of the transmitting signal, for example the signal monitoring devices may not know the format of the signal being monitored in tactical or hostile environment involving military or law enforcement operations.
Although significant research has been conducted on automatic modulation classification methods during the last two decades, this research has been limited to single receiver situations where the classification performance and recognition of a successful rate have largely depended on channel quality and the receiver signal strength.
These condition

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  • Method of spectrum mapping and exploitation using distributed sensors
  • Method of spectrum mapping and exploitation using distributed sensors
  • Method of spectrum mapping and exploitation using distributed sensors

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Embodiment Construction

[0045]In accordance with the present invention, fusing multiple signals in connection with non-cooperative demodulation affords a more effective demodulation without suffering from the limitations, shortcomings, and difficulties of single receiver configurations, such as receiving weak signals and classifying the unknown weak signal. FIG. 1 is a diagram illustrating a typical communication sensor network with an unknown transmitter T and N number of communication sensors, denoted by R1,, R2,, . . . , and RN. The unknown transmitted signal is transmitted by a transmitter T and is collected by sensors R1,, R2,, . . . , and RN non-cooperatively. In this diagram, the sensors can communicate with each other cooperatively, but they do not need to be fully connected. The sensors have no hand-shaking with the unknown transmitter, T.

[0046]FIG. 2 is a conceptual block diagram depicting a simplified version of the multi-sensor non-cooperative demodulation device 10, comprising a group of senso...

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Abstract

A method for operating a distributed multi-sensor system for spectrum mapping and signal exploitation. The method includes selecting a plurality of distributed sensors including at least one or more clusters of distributed sensors, sending a request to the plurality of distributed sensors to collect signal snapshot copies, routing the signal snapshot copies or information from the plurality of distributed sensors as inputs to at least one fusion module, processing all inputs before sending any next request to the plurality of distributed sensors, optimizing the one or more clusters of distributed sensors, combining multiple distributed signal inputs in the at least one fusion module, and making a global decision. A system for spectrum mapping and signal exploitation and a storage medium encoded with machine-readable computer code for implementing the method are also disclosed.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a Continuation-In-Part of U.S. patent application Ser. No. 13 / 325,124, which was filed on Dec. 14, 2011, and which is a continuation of U.S. patent application Ser. No. 12 / 148,076, which was filed on Apr. 15, 2008, and this Continuation-in-Part is being filed under 35 U.S.C. Section 120, and priority from those earlier applications is hereby claimed, and those earlier applications are incorporated herein by reference in their entirety.GOVERNMENT INTEREST[0002]The invention described herein may be manufactured, used, imported, sold, and licensed by or for the Government of the United States of America without the payment to me of any royalty thereon.FIELD OF THE INVENTION[0003]The present invention generally relates to a method and a system of signal collection networks. In particular, the present invention concerns a method and a system for spectrum mapping and exploitation using distributed sensors together with multi...

Claims

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Application Information

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IPC IPC(8): H04L27/06H03D1/00
CPCH04L27/0012H04L27/0006H03D2200/005H04L27/34H03D2200/006H04L27/2053
Inventor SU, WEI
Owner UNITED STATES OF AMERICA THE AS REPRESENTED BY THE SEC OF THE ARMY
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